Hull for vessels.



S. GOLDEN.

HULL FOR VESSELS,

APPLICATION FILED OCT. 19. 1917.

Patentedr'Feb. 11, 1919.

2 SHEETS-SHEET l.

SLGOLDEN. I HULL FOR VESSELS.

APPLZICATION FILED OCT. 19, I917.

Patented Feb. 11, 1919.

2 SHEETS-SHEET 2;

w mszyo INVENTOR ATTORNEYS SAMUEL GOLDEN, OF NEW YORK, N. Y., ASSIGNOR T HULLFIN BOAT COMPANY, INC.,

OF YORK, N. Y., A CORPORATION OF NEW YORK.

HULL FOR VESSELS.

Specification of Letters Patent.

Patented Feb. fl, 1919.

Application filed October 19, 1917. Serial No. 197,460.

the borough of Manhattan, in the city and State of New York, have invented a new and useful Improvement in Hulls of Vessels, of

' which the following is a specification.

. This invention relates to improvements in hulls of vessels, and particularly" to those which are designed to be propelledby screw propellers and which are of the type shown and described in my Patent No.) 867 ,654, dated October 8, 1907, upon which structure this invention is an improvement.

' One object of my invention is to provide such a structure in which increased speed may be obtained as a result of the design of the hull and the location and arrangement of the propelling mechanism.

Another object is to' provide such a struc- 'ture in which the qualities of sea-worthiness,

easy handling and maneuvering, as well as stability, are greatly increased.

A still further object consists in providing certain improvements in the construction, form and arrangement of the several parts whereby the above named and other advantages may be effectively attained.

A practical-embodiment of my invention is represented in the accompanying drawings, in which, I

Figure 1 represents a side elevation of a vessel embodying my invention.

Fig. 2 represents a bottom plan view of the same. I v

Fig. 3 represents a stern elevation of the same, minus the superstructure.

Fig. 4 represents a bow elevation of the parts shown in Fig. 3.

Fig. 5 represents an enlarged interior elevation of one of the auxiliary fins, partly in section.

Fig. 6 represents a top plan view of the parts shown in Fig. 1, together with a section of the wall of the main fin to which the auxiliary fin is attached.

Fig. 7 represents a transverse section on the scale of Figs. 5 and 6, through the auxiliary fin and the main fin to which it is attached.

Fig. 8 represents a detail plan view, partly in' section, showing a modified form of drive i from the motor in the main fin to the shaft in one of the auxiliary fins.

Fig. 9 represents an enlarged detail side elevation, partly in section, on a scale inter: mediate that of Figs. 1 to L inclusive and that of Figs. 5 to 8 inclusive, of a modified form of fin arrangement; and

Fig. 10 is a detail inverted plan view of the parts shown in Fig. 9.

Referrin to the preferred form shown in Figs. 1 to inclusive, the hull of the vessel is denoted by 1, and it is provided on its bottom with a hollow compartment or fin 2 which is built into the vessel so as to be m communication with the hull thereof.

This main fin 2 is both shorter and narrower than the bottom of the hull 1, and is preferably disposed about centrally thereof; that is, the main fin is arranged so that its front part is about the same distance from the stem of the hull as its rear part is from the stern, and each of its sides is substantially the same distance from the adjasent sides of the hull.

I prefer to have the main fin 2 with its greatest width forward of its center, and tapered both forwardly, rearwardly and downwardly so as to have somewhat the shape of a fish or torpedo, in order that it may cut through the water with a minimum of resistance.

Within the main fin 2, I provide a suitable motor 3, from which a propeller shaft 4 extends through the'rear end of the main fin and is fitted with a screw propeller 5. Of course, suitable bearings and stuffingboxes will be arranged in connection with the shaft 4, in a well understood manner.

A bracket or guide 6 projects rearwardly from the main fin 2, and is intended to act as the lower pivot point for a rudder 7, as well as to protect the screw propeller 5 of the said rudder.

Upon each side of the main fin 2, I locate auxiliary fins 8, 9. These auxiliary fins are preferably of substantially the same shape as the main fin 2, for the purpose already named, and they may appropriately be composed of two sections constructed of wood or other suitable material fastened together and riveted or otherwise secured to the main fin 2. The combined construction is such that compartment which is required to be in communication with the interior of the main fin 2.

A tubular propeller shaft housin 12 is threaded into a mounting 13 fixed to t e partition 11 in each of the auxiliary fins, and extends rearwardly to the tail of each fin in which it is suitably secured. The rear end of the said housing may have appropriate propeller shaft bearings located therein, as indicated at 14, for the journalin of the auxiliary propeller shafts 15, w ile the mounting 13 is equipped with the customary stufiing-box 16 for preventing the ingress of water.

The auxiliary propeller shafts 15 are di rectly connected to suitable motors 17 and have their rear ends equipped with screw propellers 18.

I prefer to mount the main propeller 4 and the auxiliary propellers 15 horizontally, and parallel with each other, which arrangement I am enabled to obtain as the result of the peculiar construction herein described, since the motors, instead of being up in the hull of the vessel, are down onayline with the propellers.

Fromthe foregoing description it will be seen that I have devised an arrangement in which the weight of the source of motive power is held low, and in which the .propellers have a straight-line drive, and are maintained in solid water irrespective of the rolling or tossing of the vessel. Furthermore, the under-water structure, while serving all the purposes of main and bilge keels, is also adapted to accommodate the machinery and thus leave the hull of the vessel free for cargo or passenger space.

By reason of the fact that the fins-are narrow and fish shaped, they will offer very little resistanceto the progressof. the vessel and, since they are materially shorter than the hull, themaneuvering of the vessel is greatly facilitated. The auxiliary propellers may be utilized for steering the vessel, in case the gear designed for that purpose is out of order, orthey may be used as the sole means for propelling the vessel in case the main motor or assoclated parts are incapacitated.

It will be noted further that all the propellers are somewhat above the extreme bottom of the vessel so that they will not be damaged in case the vessel grounds moderately. Referring to the modified form shown in 8, the parts are the same as those embo ie d in the preferred form, except that the auxiliary s afts, instead of being connaeaoea nected .with independent motors, are merely provided with sprockets 19 which are connected by chains 20 with sprockets 21'on the main shaft 4.

Referring to the modified form shown in as the referred form except that two auxiliary us are located upon each side of the main fin.

I desire. to emphasize the fact that the construction described results in an increased efiiciency in the propulsion of the vessel; that is, in an increased speed for a given motive power, over that of previous structures within my knowledge, as well as greater stability and ease in handling or maneuvering of the vessel. The former advantages obtain mainly because a straightline drive is provided and because the propellers are maintained in solid water wherein their full effect may be exerted. The latter advantages-result chiefly from the general construction and arrangement of the main and auxiliary fins and their location upon the hull of the vessel.

It will be understood that various changes may be resorted to in the form, construction and arrangement of the several parts without departing from the spirit and scope of 1 my invention, and hence I do not intend to be limited to the specific details herein described except as they may be included in the claims.

What I claim is:

1. A structure of the character described comprising, a hull, a main hollow fin of less width and length than the hull formed on the bottom thereof, an auxiliary .hollow fin formed on the main fin, a propeller shaft mounted in the auxiliary fin and projecting through one end thereof, the outer surface of the main fin adjacent the projecting end of the shaft being substantially free of obstructions whereby a propeller carried by the said end of the shaft may operate in solid Water, and means carried by the said fins for actuating the propeller shaft.

2. A structure of the character described comprising a hull, a main hollow fin of less width and length than the hull .formed on are and projecting through an end thereof, the

outer surface. of the main fin adjacent the projecting ends of the shafts being substantially free of obstructions whereby propel lers carried by the'said ends of the shafts may operate in solid water, and means car ried by the said fins for actuating the propeller shafts.

3. A structure of the character described comprising a hull, a main hollow fin of less width and length than the hull formed on the bottom thereof, a plurality of auxiliary "1': hollow fins formed on each side of the main of the shafts may operate in solid water, fin, propeller shaftsmountedinvthe ,auxiland. means carried by the said fins for actuiary' fins and projecting through an end ating the propeller shafts. 1Q"

thereoflthe outer surface of the main fin Intestimony, that I claim the foregoing 5 adjacent the projecting ends of theshafts as my invention, 1 have signed my name this being substantially free of obstructions 'l6th day of October, 1917.

whereby propellers carried by the said ends SAMUEL GOLDEN. 

